发明名称 |
Method for searching fixed codebook based upon global pulse replacement |
摘要 |
The present research can decrease the amount of computation and enhance speech quality by using a global pulse replacement method in a fixed codebook search. The fixed codebook search method in a speech encoder based upon global pulse replacement, includes the steps of: (a) computing absolute values of the pulse-position likelihood-estimator vectors; (b) temporarily obtaining a codebook vector; (c) computing a mathematical equation by replacing a pulse; (d) determining whether a value computed based upon the mathematical equation is increased after pulse replacement; (e) obtaining a new codebook vector by replacing the pulse; and (f) maintaining a previous codebook vector.
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申请公布号 |
US2004193410(A1) |
申请公布日期 |
2004.09.30 |
申请号 |
US20030740310 |
申请日期 |
2003.12.17 |
申请人 |
LEE EUNG-DON;KIM DO-YOUNG |
发明人 |
LEE EUNG-DON;KIM DO-YOUNG |
分类号 |
G10L19/00;G10L19/02;(IPC1-7):G10L19/04 |
主分类号 |
G10L19/00 |
代理机构 |
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